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Curious where hybrid buyers live? We present the data in two ways. First, we list the 15 cities and states that boast the largest numbers of new hybrids on their roads within the past year. For example, residents in the New York City area have put over 8,000 new hybrids on the road in 2007. Second, we adjust for population and look at hybrids per person (in states) or per household (in metro areas). This lets us include cities like Portland, OR: a city that has fewer overall vehicles (and thus fewer hybrids) but has more hybrids per capita than anywhere else.